Snow sweeper



Aug. 29; 1939. J. A. BLAZIER SNOW SWEEPER 2 Sheets-Sheet 1 Filed Nov.25, 1938 Inventor Aft y 1. A. BLAZIER Aug. 29, 1939.

SNOW SWEEPER Filed Nov. 25, 1958 2 SheetsSheet 2 Inventor fljiazzrPatented Aug. 29, 1939 UNITED STATES PATENT OFFICE 2 Claims.

The present invention relates to new and useful improvements in snowsweepers and has for one of its important objects to provide, in amanner as hereinafter set forth, a machine of this character which isadapted to be pushed by a walking operator with a minimum of effort.

Another very important object of the invention is to provide a snowsweeper of the aforementioned character comprising a rotary broom of anovel construction and arrangement, together a with novel means fordriving said broom.

Still another very important object of. the invention is to provide, ina snow sweeper including a wheel supported frameand rotary broom 16mounted thereon, novel means for rockably adjusting said frame in amanner to adjust the rotary broom relative to the ground.

Other objects of the invention are to provide a snow sweeper of thecharacter described which will be comparatively simple in construction,strong, durable, highly efilcient and reliable in use, compact, light inweight and which may be ,manufactured at low cost.

All of the foregoing and still further objects and advantages of theinvention will become apparent from a study of the followingspecification, taken in connection with the accompanying drawingswherein like characters of reference designate corresponding partsthroughout the several views, and wherein:

Figure 1 is a top plan view of a snow sweeper constructed in accordancewith the present invention, a portion of the arcuate shield being brokenaway in section.

Figure 2 is a view in side elevation of the machine.

Figure 3 is a vertical sectional view through the rotary broom andthe'shield therefor.

Figure 4 is a view in end elevation of. the rotary broom.

Referring now to the drawings in detail, it will be seen that theembodiment of the invention which has been illustrated comprises a framestructure of suitable metal which is designated generally by thereference numeral I. The

frame structure I includes "a horizontal U member 2 having comparativelylong and short legs 3 and 4, respectively. The frame structure ,Ifurther comprises transverse and diagonal braces 5 and 6, respectively,extending between the legs 3 and 4.

Vertical bars I of suitable metal are rigidly secured on the legs 3 .and4 at intermediate points. As best seen in Fig. 2 of the drawings,

the bars I extend above and below the legs 3 and 4. Supporting wheels 8are mounted on the lower end portions of the vertical bars I. Thereference numeral 9 designates a tongue having diverging arms ID on itsforward end portion pivotally secured to the upper end portions of 5 thebars I. A handle II is provided on the rear end of the tongue 9.

Journalled between the free end portions of the legs 3 and 4 of theframe structure I is a rotary diagonal broom which is designatedgenerally by 10 the reference numeral I2. The broom I2 includes a shaftI3 having mounted thereon a series of spirally extending sockets I4.Brushes I5 are secured in the sockets I4 through the medium oftransversely extending bolts I6. The broom I2 15 further includesspirally twisted metallic blades I! which project from the shaft I3.-

Metallic plates I8 and I9 are mounted on the braces 5 of the framestructure I. Mounted on the plate I9 is a suitable stand 20 (see Fig. 2)20 on which an electric motor 2I is mounted. The electric motor 2|drives a shaft 22 having one end portion journ'alled in a suitablebearing 23 which is mounted on the plate I8. The shaft 22 drives therotary broom I2 through a belt and pulley 25 connection 24. The pulleysof the connection 24 may be of any suitable ratio for rotating the broomI2 at the desired speed. An arcuate shield 25 of suitable metal ismounted on the brace member 6 and extends over the rotary 30 broom l2.

Mounted on the rear portion of the frame member 2 is a vertical guide 26in which a bar 21 is mounted for sliding adjustment. Mounted on thelower end of the bar 21 is a caster wheel 35 28. The reference numeral29 designates a hand operated screw which is rotatably mounted on asuitable support provided therefor on the frame member 2, as at 30. Thescrew 29 is threadedly connected to the bar 21 for raising and lowering40 said bar.

It is thought that the operation of the machine will be readily apparentfrom a consideration of the foregoing. Of course, the operator graspsthe handle II for pushing and steering 46 the device. The constructionand arrangement of the wheels 8 and 28 is such that the device may bepushed and steered with a minimum of effort. When the electric motor 2Iis energized the broom I2 is rotated through the medium of the driveconnection 24 from the motor shaft 22. Due to the fact that the rotarybroom I2 extends diagonally across the frame structure, the snow isthrown forwardly and to one side of the machine as said machine ispushed over the ground. The 66 blades ll are adapted to loosencomparatively hard or packed snow and, in addition, materially berockably adjusted on the wheels 8 thereby raising or lowering the rotarybroom i2 relative to the ground as desired. Of course, the screw 28raises or lowers the rear end of the iramestructure i on the casterwheel 28. The motor 21 may be connected with any suitable source ofcurrent. If desired, a suitable internal combustion engine may besubstituted for the electric motor El. 01? course, the machine may beused for any other purposes for which it may be found adapted, such asfor sweeping leaves, or cleaning sidewalks, etc. 4

It is believed that the many advantages oi a snow sweeper constructed inaccordance with the present invention will be readily understood andalthough a preferred embodiment of the device is as illustrated anddescribed, it is to be understood that changes in the details ofconstruction and in the combination and arrangement of parts may beresorted to which will fall within the scope oi-the invention asclaimed.

What is claimed is:

1. A snow sweeper oi. the character described comprising a supportingstructure including a horizontal U member, said U member comprisingcomparatively long and short forwardly projecting legs, a diagonal broomrotatably moimted between the free end portions of said legs. bracesextending between the legs, a motor mounted on said braces, meansoperatively connecting the broom to said motor for actuation thereby, anarcuate shield for the broom mounted on one of the braces, supportingwheels mounted beneath the U member, and means connected to the framestructure for moving same over the ground on the supporting wheels.

2. A snow sweeper of the character described comprising a framestructure including a horizontal U member, a broom rotatably mountedbetween the legs of said U member, vertical bars rigidly secured to thelegs at intermediate points and extending above and below said legs,supporting wheels ,iournalled on the lower portions of said bars, atongue including diverging arms pivotally connected to the upper endportionsoi the bars for pushing the machine over the ground,

and a caster wheel mounted for vertical adjustment on the rear portionof the U member and constituting means for rocking the frame structurefor raising and lowering the broom.

JESS ADRIAN BLAZIER.

